WO2003020481A3 - Apparatus and method for pre-treatment of wood chips - Google Patents

Apparatus and method for pre-treatment of wood chips Download PDF

Info

Publication number
WO2003020481A3
WO2003020481A3 PCT/US2002/026331 US0226331W WO03020481A3 WO 2003020481 A3 WO2003020481 A3 WO 2003020481A3 US 0226331 W US0226331 W US 0226331W WO 03020481 A3 WO03020481 A3 WO 03020481A3
Authority
WO
WIPO (PCT)
Prior art keywords
chips
nozzles
tube
steam
digester
Prior art date
Application number
PCT/US2002/026331
Other languages
French (fr)
Other versions
WO2003020481A2 (en
Inventor
Jack T Baker
Myles M Miller
Original Assignee
Jack T Baker
Myles M Miller
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jack T Baker, Myles M Miller filed Critical Jack T Baker
Priority to AT0902002A priority Critical patent/AT414242B/en
Priority to CA002431555A priority patent/CA2431555A1/en
Priority to AU2002331627A priority patent/AU2002331627A1/en
Publication of WO2003020481A2 publication Critical patent/WO2003020481A2/en
Publication of WO2003020481A3 publication Critical patent/WO2003020481A3/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/06—Feeding devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/14—Means for circulating the lye

Landscapes

  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

A pre-treatment device (11) for wood chips for pulping comprises a tube through which the chips fall into a digester (13). Steam is injected (26) into the tube through rings of nozzles (28), which are angled circumferentially to impart a rotary and turbulent motion to the falling chips. Some nozzles (28) are angled downwardly to encourage the chips to flow freely through the tube, some are horizontal to encourage a longer dwell time near the nozzles (28). Digesting liquor is also sprayed (34) on the chips from spray nozzles (42) after the first ring of steam nozzles (28). The heat and steam expel air and other non-condensable gases and volatiles form the chips, allowing them to absorb the liquor. At the bottom of the tube, the chips are propelled down and outwards by jets of higher-pressure steam, spreading and packing them into the digester (13).
PCT/US2002/026331 2001-08-30 2002-08-19 Apparatus and method for pre-treatment of wood chips WO2003020481A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT0902002A AT414242B (en) 2001-08-30 2002-08-19 DEVICE AND METHOD FOR PRE-TREATING WOOD CHIPS
CA002431555A CA2431555A1 (en) 2001-08-30 2002-08-19 Apparatus and method for treatment of loose material
AU2002331627A AU2002331627A1 (en) 2001-08-30 2002-08-19 Apparatus and method for pre-treatment of wood chips

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/942,500 US6497791B1 (en) 2001-08-30 2001-08-30 Apparatus for pre-treatment of wood chips
US09/942,500 2001-08-30

Publications (2)

Publication Number Publication Date
WO2003020481A2 WO2003020481A2 (en) 2003-03-13
WO2003020481A3 true WO2003020481A3 (en) 2003-07-17

Family

ID=25478161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/026331 WO2003020481A2 (en) 2001-08-30 2002-08-19 Apparatus and method for pre-treatment of wood chips

Country Status (5)

Country Link
US (2) US6497791B1 (en)
AT (1) AT414242B (en)
AU (1) AU2002331627A1 (en)
CA (1) CA2431555A1 (en)
WO (1) WO2003020481A2 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0201512L (en) * 2002-05-21 2003-03-11 Kvaerner Pulping Tech Method for continuous cooking of raw material for cellulose pulp
CA2452145A1 (en) * 2003-06-03 2004-12-03 David Tarasenko Method for producing pulp and lignin
US7060162B2 (en) * 2003-08-29 2006-06-13 Jack T. Baker Chip bin
FI123037B (en) * 2004-05-05 2012-10-15 Metso Paper Inc Process and apparatus for degassing of fish
CA2701949A1 (en) * 2007-10-09 2009-04-16 Sunopta Bioprocess Inc. Two-stage enzymatic hydrolysis process for treating lignocellulosic materials
US20090098617A1 (en) * 2007-10-10 2009-04-16 Murray Burke Enzymatic treatment under vacuum of lignocellulosic materials
JP2012504936A (en) * 2007-10-10 2012-03-01 スノプタ、バイオプロセス、インコーポレイテッド Treatment of lignocellulosic materials using disc refining and enzymatic hydrolysis
BRPI0909856B1 (en) * 2008-06-04 2017-12-12 Inibicon A/S. "PREVIOUSLY TREATED HIGH PRESSURE BIOMASS DISPENSING DEVICE FOR LOWER AND HIGHER PRESSURE BIOMASS DISCHARGE METHOD FOR LOWEST"
CA2638152C (en) * 2008-07-24 2013-07-16 Sunopta Bioprocess Inc. Method and apparatus for treating a cellulosic feedstock
CA2638159C (en) 2008-07-24 2012-09-11 Sunopta Bioprocess Inc. Method and apparatus for treating a cellulosic feedstock
CA2638160C (en) 2008-07-24 2015-02-17 Sunopta Bioprocess Inc. Method and apparatus for conveying a cellulosic feedstock
CA2638150C (en) 2008-07-24 2012-03-27 Sunopta Bioprocess Inc. Method and apparatus for conveying a cellulosic feedstock
CA2650919C (en) 2009-01-23 2014-04-22 Sunopta Bioprocess Inc. Method and apparatus for conveying a cellulosic feedstock
US9127325B2 (en) 2008-07-24 2015-09-08 Abengoa Bioenergy New Technologies, Llc. Method and apparatus for treating a cellulosic feedstock
CA2650913C (en) 2009-01-23 2013-10-15 Sunopta Bioprocess Inc. Method and apparatus for conveying a cellulosic feedstock
US8915644B2 (en) 2008-07-24 2014-12-23 Abengoa Bioenergy New Technologies, Llc. Method and apparatus for conveying a cellulosic feedstock
CA2638157C (en) 2008-07-24 2013-05-28 Sunopta Bioprocess Inc. Method and apparatus for conveying a cellulosic feedstock
US8956505B2 (en) * 2009-06-11 2015-02-17 Andritz Technology And Asset Management Gmbh Compact feed system and method for comminuted cellulosic material
CA2673134A1 (en) * 2009-07-17 2011-01-17 Murray J. Burke Method and apparatus for the heat treatment of a cellulosic feedstock upstream of hydrolysis
CA2755981C (en) 2009-08-24 2015-11-03 Abengoa Bioenergy New Technologies, Inc. Method for producing ethanol and co-products from cellulosic biomass
FI126802B (en) * 2014-09-12 2017-05-31 Andritz Oy Process and continuous hydraulic boiler system for chemical pulp production

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238285A (en) * 1978-10-11 1980-12-09 Hudson Pulp & Paper Corp. Digester system for delivering wood chips in an even layer into a digester
US4454661A (en) * 1981-03-09 1984-06-19 Kraftwerk Union Aktiengesellschaft Tornado flow separator for the thermal treatment of fine-grain or granular material
EP0226227A2 (en) * 1984-05-01 1987-06-24 Oliver Armas Laakso Chip presteaming and air washing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2227634A (en) 1937-04-17 1941-01-07 Dalin David Method of and apparatus for conditioning grain
SE340036B (en) 1970-08-31 1971-11-01 Karlstad Mekaniska Ab
US4238258A (en) * 1979-06-26 1980-12-09 Caterpillar Tractor Co. Elongate material spreading and tacking apparatus and method
DE3802489C2 (en) 1988-01-28 1997-12-18 Schwaebische Huettenwerke Gmbh Device for conditioning bulk goods such as chips or chips
EP0763622A3 (en) 1990-08-17 1999-08-25 Alcell Technologies Inc. Continuous solvent pulping and washing processes and apparatus
US5795438A (en) * 1996-11-04 1998-08-18 Ahlstrom Machinery Inc. Method and apparatus for feeding multiple digesters
US6174411B1 (en) * 1997-02-10 2001-01-16 Andritz-Ahlstrom Inc. Continuous digester with inverted top separator
US6241851B1 (en) * 1998-03-03 2001-06-05 Andritz-Ahlstrom Inc. Treatment of cellulose material with additives while producing cellulose pulp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238285A (en) * 1978-10-11 1980-12-09 Hudson Pulp & Paper Corp. Digester system for delivering wood chips in an even layer into a digester
US4454661A (en) * 1981-03-09 1984-06-19 Kraftwerk Union Aktiengesellschaft Tornado flow separator for the thermal treatment of fine-grain or granular material
EP0226227A2 (en) * 1984-05-01 1987-06-24 Oliver Armas Laakso Chip presteaming and air washing

Also Published As

Publication number Publication date
AT414242B (en) 2006-10-15
WO2003020481A2 (en) 2003-03-13
AU2002331627A1 (en) 2003-03-18
CA2431555A1 (en) 2003-03-13
US20030047297A1 (en) 2003-03-13
US6497791B1 (en) 2002-12-24
ATA90202002A (en) 2006-01-15
US6572734B2 (en) 2003-06-03

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